Answer: It is TRUE. A point in a linear equation can be the solution to said equation.
Answer:
Area of one piece of pizza ≈ 12.83 inches
Step-by-step explanation:
First of all let's calculate the area of the pizza.
Pizza is circular in shape, thus,
Area; A = πr²
We are given the radius;r = 7 inches
So, A = π(7²) = 153.94 in²
Now, since the area is divided into 12 equal sized pieces, thus we will divide the total area we got by 12 to get the area of one piece.
Area of one piece of pizza = 153.94/12 ≈ 12.83 inches
Answer:
Step-by-step explanation:
the directrix is y=-1
I don't know what the vertex focus is.
Step-by-step explanation:
3)
2x + 3y = 12
Solve for y. Then you have y = mx + b, and m is the slope.
3y = -2x + 12
y = -2/3 x + 12
slope = -2/3
6x - 4y = 8
-4y = -6x + 8
y = -6/(-4) x + 8/(-4)
y = 3/2 x - 2
slope = 3/2
Since the slopes -2/3 and 3/2 are opposite reciprocals, the lines are perpendicular.
4)
3x - 4y = 12
-4y = -3x + 12
y = -3/(-4) x + 12/(-4)
y = 3/4 x - 3
slope = 3/4
4x + 3y = 15
3y = -4x + 15
y = -4/3 x + 5
slope = -4/3
Since the slopes 3/4 and -4/3 are opposite reciprocals, the lines are perpendicular.
